Billy Gumbert had a record of 4-6 with an ERA of 5.22 and 18 strikeouts in 10 appearances in his rookie season in 1890.
| NAME | SEASON | TM | G | W | L | W% | GS | ERA | SO | CG | SHO | SV | IP | H | ER | R | HR | BB | HBP | GF | IBB | TBF | WP | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | WHIP | BABIP | RA | ERA- | FIP | FIP- | H/9 | PRAA | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | B. Gumbert | 1890 |  PTN | 10 | 4 | 6 | .400 | 10 | 5.22 | 18 | 8 | 0 | 0 | 79.1 | 96 | 46 | 71 | 0 | 31 | 8 | 0 | 370 | 2 | 2.04 | 3.52 | 0.58 | 0.00 | 4.9 | 8.4 | 1.60 | .307 | 8.05 | 161 | 3.94 | 113 | 10.89 | -6.5 |
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